Heat pipe assembly

Abstract

The invention discloses a heat pipe assembly which comprises a first heat pipe and at least one second heat pipe. The first heat pipe is provided with an annular inner wall face, an annular outer wall face and at least one opening. A first cavity is defined by the annular inner wall face. And the annular outer wall surface is back to the annular inner wall surface. The at least one opening penetrates through the annular inner wall surface and the annular outer wall surface. The at least one second heat pipe is provided with a second cavity and a communication port. The communicating opening communicates with the second cavity. The at least one second heat pipe is arranged on the first heat pipe, and the second cavity of the at least one second heat pipe is communicated with the first cavity of the first heat pipe through the communication port and the at least one opening.

Description

[0001] This application claims the benefit and priority of utility model patent application with application number 202322450877.8 and application name “Heat Pipe Assembly” filed on September 8, 2023, the full text of which is incorporated herein by reference. Technical Field

[0002] The invention relates to a heat pipe assembly, in particular to a heat pipe assembly of a composite double heat pipe. Background Art

[0003] Generally, electronic devices or machinery and equipment will generate high temperatures when in operation, so manufacturers usually install heat pipes to dissipate heat. Heat pipes use the evaporation and condensation of internal coolant to achieve a rapid temperature equalization effect. In detail, after the liquid coolant in the heat pipe absorbs heat at the evaporation end, the liquid coolant vaporizes and moves to the condensation end due to vapor pressure. After the gaseous coolant at the condensation end releases heat and condenses into liquid coolant, the liquid coolant flows back to the evaporation end through the internal capillary structure, absorbs heat again and evaporates, thus performing a cooling cycle.

[0004] There are many forms of heat pipes on the market for various cooling modules. Generally speaking, tower cooling modules use U-shaped heat pipes. U-shaped heat pipes need to be bent to form. However, the U-shaped heat pipe is limited by the bending angle at the bend, which limits the heat exchange area of ​​the U-shaped heat pipe, and thus makes the heat dissipation efficiency of the U-shaped heat pipe insufficient. Therefore, how to improve the heat dissipation efficiency of the U-shaped heat pipe is one of the problems that R&D personnel should solve. Summary of the invention

[0005] The present invention provides a heat pipe assembly to improve the heat dissipation efficiency of a U-shaped heat pipe.

[0006] A heat pipe assembly disclosed in one embodiment of the present invention comprises a first heat pipe and at least one second heat pipe. The first heat pipe has an annular inner wall surface, an annular outer wall surface and at least one opening. The annular inner wall surface surrounds a first chamber. The annular outer wall surface faces away from the annular inner wall surface. At least one opening passes through the annular inner wall surface and the annular outer wall surface. At least one second heat pipe has a second chamber and a connecting port. The connecting port connects the second chamber. At least one second heat pipe is arranged on the first heat pipe, and the second chamber of the at least one second heat pipe is connected to the first chamber of the first heat pipe through the connecting port and the at least one opening.

[0007] According to the heat pipe assembly of the above embodiment, since the second heat pipe is added to the first heat pipe, the heat exchange area of ​​the heat pipe assembly can be increased when the width of the heat pipe assembly is limited, thereby improving the heat dissipation efficiency of the heat pipe assembly.

[0008] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the combination of a heat pipe assembly and fins according to the first embodiment of the present invention.

[0010] Figure 2 for Figure 1 Exploded diagram of a heat pipe assembly.

[0011] Figure 3 for Figure 1 A bottom view schematically shows a second heat pipe of a heat pipe assembly.

[0012] Figure 4 for Figure 1 A schematic cross-sectional view of a heat pipe assembly.

[0013] Figure 5 FIG. 4 is an exploded schematic diagram of a heat pipe assembly according to a second embodiment of the present invention.

[0014] Figure 6 for Figure 5 A schematic cross-sectional view of a heat pipe assembly.

[0015] Figure 7 Schematic diagram of an exploded view of a heat pipe assembly according to a third embodiment of the present invention.

[0016] Figure 8 for Figure 7 A schematic cross-sectional view of a heat pipe assembly.

[0017] Fig. 9 FIG. 4 is an exploded schematic diagram of a heat pipe assembly according to a fourth embodiment of the present invention.

[0018] Fig.10 for Fig. 9 A schematic cross-sectional view of a heat pipe assembly.

[0019] Fig.11 Schematic diagram of an exploded view of a heat pipe assembly according to a fifth embodiment of the present invention.

[0020] Fig.12 for Fig.11 A schematic cross-sectional view of a heat pipe assembly.

[0021] Fig.13 Schematic diagram of an exploded view of a heat pipe assembly according to a sixth embodiment of the present invention.

[0022] Fig.14 for Fig.13 A schematic cross-sectional view of a heat pipe assembly.

[0023] Fig.15 FIG. 4 is an exploded schematic diagram of a heat pipe assembly according to a seventh embodiment of the present invention.

[0024] Fig.16 for Fig.15 A schematic cross-sectional view of a heat pipe assembly.

[0025] Fig.17 Schematic diagram of an exploded view of a heat pipe assembly according to an eighth embodiment of the present invention.

[0026] Fig.18 for Fig.17 A schematic cross-sectional view of a heat pipe assembly.

[0027] Fig.19 Schematic diagram of an exploded view of a heat pipe assembly according to a ninth embodiment of the present invention.

[0028] Fig. 20 for Fig.19 A schematic cross-sectional view of a heat pipe assembly.

[0029] Fig.21 FIG. 1 is a bottom view of a second heat pipe of a heat pipe assembly according to a tenth embodiment of the present invention.

[0030] Fig. 22 FIG. 4 is a perspective schematic diagram of a heat pipe assembly according to an eleventh embodiment of the present invention.

[0031] Fig.23 FIG. 1 is a perspective schematic diagram of a heat pipe assembly according to a twelfth embodiment of the present invention.

[0032] Fig.24 It is a three-dimensional schematic diagram of a heat pipe assembly according to the thirteenth embodiment of the present invention.

[0033] Fig.25 for Fig.24 A schematic cross-sectional view of a heat pipe assembly.

[0034] Fig.26 FIG. 1 is a perspective schematic diagram of a heat pipe assembly according to a fourteenth embodiment of the present invention.

[0035] Fig. 27 Schematic diagram of an exploded view of a heat pipe assembly according to a fifteenth embodiment of the present invention.

[0036] Fig.28 Schematic cross-sectional view of a heat pipe assembly according to a sixteenth embodiment of the present invention.

[0037] Fig.29 FIG. 1 is a schematic cross-sectional view of a heat pipe assembly according to a seventeenth embodiment of the present invention.

[0038] Fig.30 Schematic diagram of an exploded view of a heat pipe assembly according to the eighteenth embodiment of the present invention.

[0039] Fig.31 for Fig.30 A partial cross-sectional schematic diagram of a heat pipe assembly.

[0040] Fig.32 FIG. 1 is a partial cross-sectional schematic diagram of a heat pipe assembly according to a nineteenth embodiment of the present invention.

[0041] Fig.33 It is a partial cross-sectional schematic diagram of a heat pipe assembly according to the twentieth embodiment of the present invention.

[0042] Fig.34 It is a schematic diagram of an exploded view of a heat pipe assembly according to the twenty-first embodiment of the present invention.

[0043] Fig.35 It is a schematic exploded view of a heat pipe assembly according to the twenty-second embodiment of the present invention.

[0044] Fig.36 It is a structural schematic diagram of an embodiment of one end of the second heat pipe.

[0045] Fig.37 FIG. 4 is a schematic structural diagram of another embodiment of one end of the second heat pipe.

[0046] Fig.38 2 is a schematic structural diagram of a heat pipe assembly according to the twenty-third embodiment of the present invention.

[0047] Fig.39 Schematic diagram of the structure of the heat pipe assembly according to the twenty-fourth embodiment of the present invention.

[0048] Fig.40 Schematic diagram of the structure of the heat pipe assembly according to the twenty-fifth embodiment of the present invention.

[0049] Wherein, the reference numerals are:

[0050] 10,10A~10N:Heat pipe assembly

[0051] 11,11A,11D~11F,11H,11L,11N,11P: First heat pipe

[0052] 111,111A,111D,111H,111L,111N: First heat conduction section

[0053] 111A1, 111D1: Depression

[0054] 111H1,111N1: bottom shell

[0055] 111H2,111N2: Top shell

[0056] 112: Second heat conduction section

[0057] 1121:Bending section

[0058] 113: first annular inner wall surface

[0059] 114, 114A, 114D: first annular outer wall

[0060] 115,115E,115F: Open

[0061] 116E,116F: Folding structure

[0062] 12,12B~12H,12J,12K,12M,12N,12P: Second heat pipe

[0063] 121,121H,121N: Folding structure

[0064] 122: Second annular inner wall surface

[0065] 123: Second annular outer wall

[0066] 124,124C,124H:Connection port

[0067] 125C: tapered structure

[0068] 126: Neck shrinkage

[0069] 127: Expansion part

[0070] 13,13N,13P: First capillary structure

[0071] 14,14I,14N,14P: Second capillary structure

[0072] 141: Crescent

[0073] 15G: Connection Ring

[0074] 15G1: Narrow diameter ring

[0075] 15G2: Wide diameter ring

[0076] 16K: The third heat pipe

[0077] 17: The third capillary structure

[0078] 18: The fourth capillary structure

[0079] 20: Fins

[0080] 30: Solder

[0081] S1, S1N: First chamber

[0082] S2, S2N: Second chamber DETAILED DESCRIPTION

[0083] See also Figures 1 to 3 . Figure 1 It is a three-dimensional schematic diagram of the combination of a heat pipe assembly and fins according to the first embodiment of the present invention. Figure 2 for Figure 1 Exploded diagram of a heat pipe assembly. Figure 3 for Figure 1 A bottom view schematically shows a second heat pipe of a heat pipe assembly.

[0084] The heat pipe assembly 10 of the present embodiment is used, for example, in combination with the fins 20 for use in a tower-type heat dissipation module, and is used to be thermally coupled to a heat source (not shown). The so-called thermal coupling refers to thermal contact or connection through other heat-conducting media. The heat pipe assembly 10 includes a first heat pipe 11, a second heat pipe 12, a first capillary structure 13, and a second capillary structure 14. The first heat pipe 11 includes a first heat-conducting section 111 and two second heat-conducting sections 112. The first heat-conducting section 111 is, for example, a flat tube. The two second heat-conducting sections 112 are, for example, round tubes, and are, for example, each connected to the opposite ends of the first heat-conducting section 111 by a curved section 1121, and the two second heat-conducting sections 112 protrude in the same direction. That is, the first heat pipe 11 is, for example, U-shaped.

[0085] Please also read Figure 4 . Figure 4 for Figure 1 A cross-sectional schematic diagram of a heat pipe assembly. The first heat pipe 11 has a first annular inner wall surface 113, a first annular outer wall surface 114 and an opening 115. The first annular inner wall surface 113 is located on the inner side of the first heat pipe 11, and extends from the first heat conducting section 111 to the second heat conducting section 112. The first annular inner wall surface 113 surrounds a first chamber S1. The first chamber S1 is used, for example, to accommodate a cooling fluid (not shown). The first annular outer wall surface 114 is located on the outer side of the first heat pipe 11, and extends from the first heat conducting section 111 to the second heat conducting section 112. In other words, the first annular outer wall surface 114 is facing away from the first annular inner wall surface 113. The opening 115 is located in the first heat conducting section 111 of the first heat pipe 11, and passes through the first annular inner wall surface 113 and the first annular outer wall surface 114 to connect to the first chamber S1.

[0086] The second heat pipe 12 is, for example, a round tube, and is disposed between the two second heat-conducting sections 112 of the first heat pipe 11, and the distance between the second heat pipe 12 and the two second heat-conducting sections 112 is, for example, the same. In other words, the second heat pipe 12 is centrally disposed between the two second heat-conducting sections 112. In detail, the second heat pipe 12 has a folded edge structure 121 at the connecting port 124. The folded edge structure 121 is, for example, annular, and the folded edge structure 121 is stacked and, for example, directly welded to the first annular outer wall surface 114 of the first heat-conducting section 111 of the first heat pipe 11 by solder 30.

[0087] The second heat pipe 12 has a second annular inner wall surface 122, a second annular outer wall surface 123 and a connecting port 124. The second annular inner wall surface 122 is located on the inner side of the second heat pipe 12 and surrounds a second chamber S2. The second chamber S2 is used, for example, to accommodate a cooling fluid (not shown). The second annular outer wall surface 123 is located on the outer side of the second heat pipe 12. In other words, the second annular outer wall surface 123 faces away from the second annular inner wall surface 122. The second annular inner wall surface 122 and the second annular outer wall surface 123 together surround the connecting port 124, and the connecting port 124 is connected to the second chamber S2, and the second chamber S2 is connected to the first chamber S1 of the first heat pipe 11 through the connecting port 124 and the opening 115.

[0088] The first capillary structure 13 and the second capillary structure 14 are, for example, powder sintered bodies. The first capillary structure 13 is located in the first chamber S1 of the first heat pipe 11. The second capillary structure 14 is located in the second chamber S2 of the second heat pipe 12 and is connected to the first capillary structure 13. The second capillary structure 14 includes two crescents 141. The two crescents 141 are symmetrically arranged in the second chamber S2. When the cooling fluid absorbs the heat of the heat source and evaporates, it can flow back to the heat source through the capillary structures 13 and 14, thereby achieving the effect of cooling circulation.

[0089] Compared to the heat pipes generally used in tower heat dissipation modules, whose width is limited by the bending angles of the two bending sections of the first heat pipe, resulting in the heat exchange area of ​​the heat pipe being limited and the heat dissipation efficiency of the heat pipe being insufficient, the heat pipe assembly 10 of this embodiment is provided with a second heat pipe 12 between the two first heat conducting sections 111 of the first heat pipe 11. In this way, the heat exchange area of ​​the heat pipe assembly 10 can be increased when the width of the heat pipe assembly 10 is limited, thereby improving the heat dissipation efficiency of the heat pipe assembly 10.

[0090] In this embodiment, the two second heat conducting sections 112 of the first heat pipe 11 are round tubes, but the present invention is not limited thereto. In other embodiments, the two second heat conducting sections of the first heat pipe may also be flat tubes.

[0091] In this embodiment, the two second heat conducting segments 112 are connected to opposite ends of the first heat conducting segment 111 by a curved segment 1121, but the present invention is not limited thereto. In other embodiments, the two second heat conducting segments can also be connected to opposite ends of the first heat conducting segment by a right angle segment.

[0092] In this embodiment, the first heat pipe 11 is U-shaped, but the present invention is not limited thereto. In other embodiments, the first heat pipe may also be in other shapes, such as L-shaped.

[0093] In this embodiment, the distance between the second heat pipe 12 and the two second heat conducting sections 112 of the first heat pipe 11 is the same, so that the second heat pipe 12 is centrally disposed between the two second heat conducting sections 112, but the present invention is not limited thereto. In other embodiments, the distance between the second heat pipe and the two second heat conducting sections of the first heat pipe may be different, so that the second heat pipe is offset between the two second heat conducting sections.

[0094] In this embodiment, the folded edge structure 121 of the second heat pipe 12 is directly welded to the first annular outer wall surface 114 of the first heat conducting section 111 of the first heat pipe 11 by the solder 30, but the present invention is not limited thereto. In other embodiments, the folded edge structure of the second heat pipe may also be first fixed by laser welding and then welded to the first annular outer wall surface of the first heat conducting section of the first heat pipe by the solder.

[0095] In this embodiment, the first capillary structure 13 is connected to the second capillary structure 14, but the present invention is not limited thereto. In other embodiments, the first capillary structure 13 is not connected to the second capillary structure 14.

[0096] See also Figure 5 and Figure 6 . Figure 5 It is a schematic diagram of an exploded view of a heat pipe assembly according to a second embodiment of the present invention. Figure 6 for Figure 5 A schematic cross-sectional view of a heat pipe assembly.

[0097] The heat pipe assembly 10A of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10A of this embodiment, the first heat conducting section 111A of the first heat pipe 11A has a recessed portion 111A1. The recessed portion 111A1 is located on the first annular outer wall surface 114A and surrounds the opening 115. The folded edge structure 121 of the second heat pipe 12 at the communication port 124 is, for example, welded to the recessed portion 111A1.

[0098] See also Figure 7 and Figure 8 . Figure 7 Schematic diagram of an exploded view of a heat pipe assembly according to a third embodiment of the present invention. Figure 8 for Figure 7 A schematic cross-sectional view of a heat pipe assembly.

[0099] The heat pipe assembly 10B of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10B of this embodiment, the second heat pipe 12B does not have a folded edge structure, and is partially inserted and, for example, welded to the opening 115 of the first heat pipe 11.

[0100] See also Fig. 9 and Fig.10 . Fig. 9 FIG. 4 is an exploded schematic diagram of a heat pipe assembly according to a fourth embodiment of the present invention. Fig.10 for Fig. 9 A schematic cross-sectional view of a heat pipe assembly.

[0101] The heat pipe assembly 10C of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10C of this embodiment, the second heat pipe 12C does not have a folding structure, but has a tapered structure 125C at the communication port 124C. The second heat pipe 12C is partially inserted and, for example, welded to the opening 115 of the first heat pipe 11, so that the tapered structure 125C is located in the first chamber S1 of the first heat pipe 11.

[0102] See also Fig.11 and Fig.12 . Fig.11 Schematic diagram of an exploded view of a heat pipe assembly according to a fifth embodiment of the present invention. Fig.12 for Fig.11 A schematic cross-sectional view of a heat pipe assembly.

[0103] The heat pipe assembly 10D of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10D of this embodiment, the second heat pipe 12D does not have a folding structure. The first heat conducting section 111D of the first heat pipe 11D has a recessed portion 111D1. The recessed portion 111D1 is located on the first annular outer wall surface 114D. The second heat pipe 12D is stacked and, for example, welded to the recessed portion 111D1 of the first heat conducting section 111D of the first heat pipe 11D.

[0104] See also Fig.13 and Fig.14 . Fig.13 Schematic diagram of an exploded view of a heat pipe assembly according to a sixth embodiment of the present invention. Fig.14 for Fig.13 A schematic cross-sectional view of a heat pipe assembly.

[0105] The heat pipe assembly 10E of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10E of this embodiment, the second heat pipe 12E does not have a folding structure, and the first heat pipe 11E has a folding structure 116E at the opening 115E. Part of the second heat pipe 12E is inserted and, for example, welded to the folding structure 116E of the first heat pipe 11E. In other words, the folding structure 116E of the first heat pipe 11E surrounds a portion of the second heat pipe 12E.

[0106] See also Fig.15 and Fig.16 . Fig.15 FIG. 4 is an exploded schematic diagram of a heat pipe assembly according to a seventh embodiment of the present invention. Fig.16 for Fig.15 Schematic cross-sectional view of a heat pipe assembly.

[0107] The heat pipe assembly 10F of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10F of this embodiment, the second heat pipe 12F does not have a folding structure, and the first heat pipe 11F has a folding structure 116F at the opening 115F. Part of the second heat pipe 12F is sleeved and, for example, welded to the folding structure 116F of the first heat pipe 11F. In other words, part of the second heat pipe 12F surrounds the folding structure 116F of the first heat pipe 11F.

[0108] See also Fig.17 and Fig.18 . Fig.17 Schematic diagram of an exploded view of a heat pipe assembly according to an eighth embodiment of the present invention. Fig.18 for Fig.17 A schematic cross-sectional view of a heat pipe assembly.

[0109] The heat pipe assembly 10 of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In this embodiment, the second heat pipe 12G of the heat pipe assembly 10G does not have a folding structure, and the heat pipe assembly 10G may also include a connecting ring 15G. The connecting ring 15G includes a narrow diameter ring portion 15G1 and a wide diameter ring portion 15G2 that are connected. The narrow diameter ring portion 15G1 is inserted and, for example, welded to the opening 115 of the first heat pipe 11, and a portion of the second heat pipe 12G is inserted and, for example, welded to the wide diameter ring portion 15G2. In other words, the second heat pipe 12G is connected to the first heat pipe 11 via the connecting ring 15G.

[0110] In this embodiment, the number of the first heat pipes 11 and the number of the connecting rings 15G are each only one, but not limited thereto. In other embodiments, the number of the first heat pipes and the number of the connecting rings can also be more than two, and the number of the connecting rings corresponds to the number of the first heat pipes. Fig.19 and Fig. 20 . Fig.19 Schematic diagram of an exploded view of a heat pipe assembly according to a ninth embodiment of the present invention. Fig. 20 for Fig.19 A schematic cross-sectional view of a heat pipe assembly.

[0111] The heat pipe assembly 10H of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10H of this embodiment, the first heat conducting section 111H of the first heat pipe 11H includes a bottom shell 111H1 and a top shell 111H2. The bottom shell is, for example, welded to the two second heat conducting sections 112. The top shell 111H2 is, for example, welded to the bottom shell 111H1. The opening 115 is located in the top shell 111H2, and the first annular inner wall surface 113 extends from the bottom shell 111H1 to the top shell 111H2. The folded edge structure 121H of the second heat pipe 12H is stacked and, for example, welded to the first annular inner wall surface 113 of the top shell 111H2.

[0112] In this embodiment, before the second heat pipe 12H is assembled to the first heat pipe 11H, the top shell 111H2 has not yet been welded to the bottom shell 111H1, so the top shell 111H2 is separated from the bottom shell 111H1. When the operator wants to assemble the second heat pipe 12H to the first heat pipe 11H, first, the second heat pipe 12H is passed through the opening 115 located in the top shell 111H2 from the end away from the connecting port 124H, and the folded edge structure 121H of the second heat pipe 12H is welded to the first annular inner wall surface 113 of the top shell 111H2, for example. Then, the top shell 111H2 provided with the second heat pipe 12H is welded to the bottom shell 111H1, for example. In this way, the assembly of the first heat pipe 11H and the second heat pipe 12H can be completed.

[0113] In the above embodiment, the second capillary structure 14 includes two crescent portions 141, but the invention is not limited thereto. In other embodiments, the second capillary structure may also be composed of a single structure of other shapes. Fig.21 . Fig.21 1 is a bottom view of a second heat pipe of a heat pipe assembly according to the tenth embodiment of the present invention. The heat pipe assembly 10I of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10I of this embodiment, the second capillary structure 14I is composed of a single semicircular structure.

[0114] In this embodiment, the second capillary structure 14I is composed of a single semicircular structure, but the present invention is not limited thereto. In other embodiments, the second capillary structure may also be composed of a plurality of structures of other shapes.

[0115] See also Fig. 22 . Fig. 22 1 is a three-dimensional schematic diagram of a heat pipe assembly according to the eleventh embodiment of the present invention. The heat pipe assembly 10J of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In this embodiment, the heat pipe assembly 10J includes two second heat pipes 12J. The two second heat pipes 12J are arranged between the two second heat conducting sections 112 of the first heat pipe 11, and are, for example, welded to the first heat conducting section 111 of the first heat pipe 11.

[0116] In this embodiment, the number of the second heat pipe 12J is only one, but the present invention is not limited thereto. In other embodiments, the number of the second heat pipe may be more than two.

[0117] See also Fig.23 . Fig.23 1 is a three-dimensional schematic diagram of a heat pipe assembly according to the twelfth embodiment of the present invention. The heat pipe assembly 10K of this embodiment is similar to the heat pipe assembly 10J of the eleventh embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In this embodiment, the heat pipe assembly 10K includes a plurality of third heat pipes 16K. These third heat pipes 16K are respectively arranged non-parallel to the first heat pipe 11 and the two second heat pipes 12K, and do not interfere with each other. In other words, the first heat pipe 11, the two second heat pipes 12K and these third heat pipes 16K are arranged, for example, in a tree-like shape.

[0118] In the present embodiment, the heat pipe assembly 10K includes a plurality of third heat pipes 16K, and these third heat pipes 16K are not arranged in parallel to the first heat pipe 11 and the two second heat pipes 12K, so that the first heat pipe 11, the two second heat pipes 12K and the third heat pipes 16K are arranged, for example, in a tree-like shape, but not limited thereto. In other embodiments, the heat pipe assembly may also include a plurality of fourth heat pipes. These fourth heat pipes are not arranged in parallel to the first heat pipe, the two second heat pipes and the third heat pipes, respectively, and do not interfere with each other. In other words, the first heat pipe, the two second heat pipes, the third heat pipes and the fourth heat pipes are arranged, for example, in a denser tree-like shape.

[0119] See also Fig.24 and Fig.25 . Fig.24 4 is a schematic three-dimensional diagram of a heat pipe assembly according to a thirteenth embodiment of the present invention. Fig.25 for Fig.24A schematic cross-sectional view of a heat pipe assembly.

[0120] The heat pipe assembly 10L of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10L of this embodiment, the first heat conducting section 111L of the first heat pipe 11L is, for example, a semi-flat tube. That is, the upper portion of the first heat conducting section 111L is flattened and has a plane shape, and the lower portion of the first heat conducting section 111L is not flattened and has an arc shape.

[0121] In this embodiment, the first heat conducting section 111L of the first heat pipe 11L is a semi-flat tube, but the present invention is not limited thereto. In other embodiments, the first heat conducting section of the first heat pipe may also be, for example, a flat tube, a round tube, a rectangular tube or an elliptical tube.

[0122] See also Fig.26 . Fig.26 1 is a three-dimensional schematic diagram of a heat pipe assembly according to the fourteenth embodiment of the present invention. The heat pipe assembly 10M of this embodiment is similar to the heat pipe assembly 10 of the first embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In this embodiment, the second heat pipe 12M of the heat pipe assembly 10M is, for example, a flat tube.

[0123] In this embodiment, the second heat pipe 12M is a flat tube, but the present invention is not limited thereto. In other embodiments, the second heat pipe may also be, for example, a semi-flat tube or a rectangular tube.

[0124] See also Fig. 27 and Fig.28 . Fig. 27 Schematic diagram of an exploded view of a heat pipe assembly according to a fifteenth embodiment of the present invention. Fig.28 Schematic cross-sectional view of a heat pipe assembly according to a sixteenth embodiment of the present invention.

[0125] The heat pipe assembly 10N of this embodiment is similar to the heat pipe assembly 10H of the ninth embodiment, so the differences between this embodiment and the first embodiment will be described below, and the similarities will not be repeated. In the heat pipe assembly 10N of this embodiment, the folded edge structure 121N of the second heat pipe 12N is, for example, semi-annular. In addition, the first capillary structure 13N located in the first chamber S1N of the first heat pipe 11N is not connected to the second capillary structure 14N located in the second chamber S2N of the second heat pipe 12N.

[0126] In this embodiment, the folded edge structure 121N of the second heat pipe 12N is in the shape of a semi-ring, but the invention is not limited thereto. In other embodiments, the folded edge structure of the second heat pipe may also be in the shape of, for example, one-third of a ring.

[0127] In this embodiment, the first capillary structure 13N and the second capillary structure 14N are not connected, but the present invention is not limited thereto. In other embodiments, the first capillary structure and the second capillary structure may also be connected by powder sintering or directly by welding.

[0128] Please see again Fig.19 and Fig. 27 ,like Fig.19 and Fig. 27 As shown, the first heat pipe 11H and the first heat pipe 11N respectively include bottom shells 111H1, 111N1 and top shells 111H2, 111N2. During assembly, the second heat pipes 12H, 12N are installed on the bottom shells 111H1, 111N1, and then the top shells 111H2, 111N2 are installed accordingly.

[0129] See also Fig.29 . Fig.29 FIG. 1 is a cross-sectional schematic diagram of a heat pipe assembly according to a seventeenth embodiment of the present invention. Fig.29 As shown, in this embodiment, a third capillary structure 17 is provided on the first capillary structure 13P, and the crescent portion 141 of the second capillary structure 14P is connected to the first capillary structure 13P through the third capillary structure 17. When the cooling fluid absorbs the heat of the heat source and evaporates, it can flow back to the heat source through the capillary structures 13P, 17, and 14P, thereby achieving a cooling cycle effect.

[0130] In this embodiment, the capillary shape of the third capillary structure 17 can be circular, square, elliptical, triangular, or other irregular shapes.

[0131] In this embodiment, the third capillary structure 17 is a structure such as a powder sintered body or a woven mesh.

[0132] In this embodiment, the third capillary structure 17 and the first capillary structure 13P are an integral structure, and in another embodiment of the present invention, the third capillary structure 17 and the first capillary structure 13P may also be a separate structure. According to the heat pipe assembly of the above embodiment, since the second heat pipe is added between the two first heat conducting sections of the first heat pipe, the heat exchange area of ​​the heat pipe assembly can be increased when the width of the heat pipe assembly is limited, thereby improving the heat dissipation efficiency of the heat pipe assembly.

[0133] See also Figure 30-Figure 31 , Fig.30 is an exploded schematic diagram of a heat pipe assembly according to an eighteenth embodiment of the present invention; Fig.31 for Fig.30 A partial cross-sectional schematic diagram of a heat pipe assembly. Figure 30-Figure 31As shown, in this embodiment, the tube wall of the second heat pipe 12P abuts against the outer wall of the first heat pipe 11P, and the second capillary structure 14P in the second heat pipe 12P extends into the first heat pipe 11P and abuts against the first capillary structure 13P in the first heat pipe 11P.

[0134] See also Fig.32 , Fig.32 FIG. 1 is a partial cross-sectional schematic diagram of a heat pipe assembly according to the nineteenth embodiment of the present invention. Fig.32 The heat pipe assembly shown is Fig.31 The heat pipe assemblies shown are substantially the same, and therefore the same parts will not be described in detail herein. The different parts will now be described as follows. In this embodiment, the second heat pipe 12P has a folded edge structure 121, and the tube wall of the second heat pipe 12P abuts against the outer wall of the first heat pipe 11P through the folded edge structure 121. The folded edge structure 121 is, for example, welded to the outer wall of the first heat pipe 11P.

[0135] See also Fig.33 Please combine Fig.18 , Fig.33 FIG. 2 is a partial cross-sectional schematic diagram of a heat pipe assembly according to the twentieth embodiment of the present invention. Fig.33 As shown, the heat pipe assembly 10G may further include a connecting ring 15G. The second heat pipe 12G is connected to the first heat pipe 11 through the connecting ring 15G. Fig.18 The difference shown is that, in this embodiment, the second heat pipe 12G covers part of the connecting ring 15G. Specifically, the inner surface of the connecting ring 15G is provided with a fourth capillary structure 18. One end of the connecting ring 15G is inserted into and, for example, welded to the opening 115 of the first heat pipe 11. The fourth capillary structure 18 is connected to the first capillary structure 13 and the second capillary structure 14P. The second heat pipe 12G covers one end of the connecting ring 15G.

[0136] Please refer to Fig.34 , Fig.34 FIG. 2 is a schematic diagram of an exploded view of a heat pipe assembly according to the twenty-first embodiment of the present invention. Fig.34 As shown, in this embodiment, the second heat pipe 12 is rectangular and has a rectangular opening, the opening 115 of the first heat pipe 11 is circular, the rectangular opening is aligned and connected to the opening 115 , and the second heat pipe 12 is welded to the opening 115 by solder 30 .

[0137] Please refer to Fig.35 , Fig.35 FIG. 2 is a schematic diagram of an exploded view of a heat pipe assembly according to the twenty-second embodiment of the present invention. Fig.35 As shown, in this embodiment, the second heat pipe 12 is rectangular and has a rectangular opening, the opening 115 of the first heat pipe 11 is rectangular, the rectangular opening is aligned and connected to the opening 115 , and the second heat pipe 12 is welded to the opening 115 by solder 30 .

[0138] Please refer to Fig.36 and Fig.37 , Fig.36 is a structural schematic diagram of an embodiment of one end of a second heat pipe; Fig.37 FIG. 1 is a schematic diagram of the structure of another embodiment of one end of the second heat pipe. Fig.36 As shown, in this embodiment, the end of the second heat pipe 12 connected to the first heat pipe has a constricted portion 126. Fig.36 As shown, in this embodiment, one end of the second heat pipe 12 connected to the first heat pipe has a flared portion 127 .

[0139] Please refer to Fig.38 , Fig.38 FIG. 2 is a schematic diagram of the structure of a heat pipe assembly according to the twenty-third embodiment of the present invention. Fig.38 As shown, in this embodiment, the second heat pipe 12 and the first heat pipe 11 are located in different planes.

[0140] Please refer to Fig.39 , Fig.39 FIG. 2 is a schematic diagram of the structure of a heat pipe assembly according to the twenty-fourth embodiment of the present invention. Fig.39 As shown, two second heat pipes 12 are installed on the L-shaped first heat pipe 11 .

[0141] Please refer to Fig.40 , Fig.40 FIG. 2 is a schematic diagram of the structure of a heat pipe assembly according to the twenty-fifth embodiment of the present invention. Fig.40 As shown, three second heat pipes 12 are vertically installed on the first heat pipe 11, and the two ends of the first heat pipe 11 are oriented in opposite directions. Although the present invention is disclosed as above with the aforementioned embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims attached to this application.

Claims

1. A heat pipe assembly, characterized in that: Include: a first heat pipe having an annular inner wall, an annular outer wall and at least one opening, wherein the annular inner wall surrounds a first chamber, the annular outer wall faces away from the annular inner wall, and the at least one opening penetrates the annular inner wall and the annular outer wall; and At least one second heat pipe has a second chamber and a connecting port, the connecting port is connected to the second chamber, the at least one second heat pipe is arranged on the first heat pipe, and the second chamber of the at least one second heat pipe is connected to the first chamber of the first heat pipe through the connecting port and the at least one opening.

2. The heat pipe assembly according to claim 1, characterized in that The first heat pipe includes a first heat conducting section and two second heat conducting sections. The two second heat conducting sections are respectively connected to opposite ends of the first heat conducting section and protrude in the same direction. The at least one opening is located at the first heat conducting section of the first heat pipe.

3. The heat pipe assembly according to claim 2, characterized in that: The two second heat-conducting sections are each connected to two opposite ends of the first heat-conducting section via a bent section.

4. The heat pipe assembly according to claim 2, characterized in that: At least a portion of the first heat-conducting section of the first heat pipe is a flat tube.

5. The heat pipe assembly according to claim 2, characterized in that: The at least one second heat pipe has a folded edge structure at the communication port, and the folded edge structure is overlapped on the annular outer wall surface of the first heat conducting section of the first heat pipe.

6. The heat pipe assembly according to claim 2, wherein: The first heat conducting section has a recessed portion, which is located on the annular outer wall surface and surrounds the at least one opening. The at least one second heat pipe has a folded edge structure at the connecting port, which is located in the recessed portion.

7. The heat pipe assembly according to claim 2, characterized in that: A portion of the at least one second heat pipe is inserted into the at least one opening of the first heat pipe.

8. The heat pipe assembly according to claim 2, wherein: The at least one second heat pipe has a tapered structure at the communication port, and the tapered structure is located in the first chamber of the first heat pipe.

9. The heat pipe assembly according to claim 2, wherein: The first heat conducting section has a recessed portion, the recessed portion is located on the annular outer wall surface, and the at least one second heat pipe is stacked on the recessed portion of the first heat conducting section of the first heat pipe.

10. The heat pipe assembly according to claim 2, wherein: The first heat pipe has a folded edge structure at the at least one opening, and a portion of the at least one second heat pipe is inserted into the folded edge structure of the first heat pipe.

11. The heat pipe assembly according to claim 2, wherein: The first heat pipe has a folded edge structure at the at least one opening, and a portion of the at least one second heat pipe is sleeved on the folded edge structure of the first heat pipe.

12. The heat pipe assembly according to claim 2, wherein: It further includes at least one connecting ring, which includes a narrow-diameter ring portion and a wide-diameter ring portion connected to each other. The narrow-diameter ring portion of the at least one connecting ring is inserted into the at least one opening of the first heat pipe, and a portion of the at least one second heat pipe is inserted into the wide-diameter ring portion of the at least one connecting ring.

13. The heat pipe assembly according to claim 2, wherein: The at least one second heat pipe has a folded edge structure at the communication port, and the folded edge structure is overlapped on the annular inner wall surface of the first heat conducting section of the first heat pipe.

14. The heat pipe assembly according to claim 1, wherein: It further comprises a first capillary structure and at least one second capillary structure. The first capillary structure is located in the first chamber of the first heat pipe, and the at least one second capillary structure is located in the second chamber of the at least one second heat pipe and connected to the first capillary structure.

15. The heat pipe assembly according to claim 14, wherein: The second capillary structure includes two crescent portions, and the two crescent portions are symmetrically arranged in the second chamber.

16. The heat pipe assembly according to claim 14, wherein: The second capillary structure is semicircular.

17. The heat pipe assembly according to claim 1, wherein: The at least one second heat pipe is welded to the first heat pipe.

18. The heat pipe assembly according to claim 1, wherein: It further comprises a plurality of third heat pipes, wherein the third heat pipes are respectively arranged non-parallel to the first heat pipe and the at least one second heat pipe.

19. The heat pipe assembly according to claim 14, wherein: The invention further comprises a third capillary structure, wherein the third capillary structure is located in the first chamber of the first heat pipe and is disposed on the first capillary structure, and the second capillary structure is connected to the first capillary structure through the third capillary structure.

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